The Tetrahedron Zamolodchikov Algebra and the AdS5 x S5 S-matrix

Vladimir Mitev, Matthias Staudacher, Zengo Tsuboi

The S-matrix of the $Ad{S}_5\times S^5$ string theory is a tensor product of two centrally extended su(2|2) S-matrices, each of which is related to the R-matrix of the Hubbard model…